April 14, 2006 -- A six-year-old Holstein dairy cow from British Columbia is believed to be Canada's fifth case of bovine spongiform encephalopathy (BSE) since May 2003. Final test results will not be available until this weekend.
Canadian veterinary authorities suspect contaminated feed will prove to be the source of the infection, should BSE be confirmed. No part of the animal entered the human or animal feed system.
If confirmed, the case could be significant because the animal was born at least two years after the imposition of a ban on cattle parts in feed meant for cattle, the suspected source of BSE infection.